Nordson_EFD_781RC_Operating_Manual.pdf - 第14页
Pump Cleaning (Motor Drive Side) If cleaning of fluid side is insufficient to prevent binding of pump, then disassemble drive side following these steps below: 1. Remove 3 small screws from rear of pump housing. 2. Remove …
Pump Maintenance and Cleaning (Fluid Side)
1. Disconnect electrical power from enclosure.
2. Remove tubing from pump fittings.
3. Remove pump from motor housing by removing the 3mounting
screws.
4. Remove 3 long screws from front of pump housing to
disassemble wetted components of pump.
5. Inspect PEEK gears and PTFE gaskets for wear / damage.
Replace as necessary using P/N 7014378* Pump Rebuild service
kit.
6. Clean any surfaces / orifices of fluid residues.
7. Reassemble in reverse order of disassembly.
*Includes PTFE gaskets, PEEK gears/SS shafts, and bushings.
Maintenance and Cleaning (continued)
781RC MicroMark Recirculating Spray Marking System
13www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Pump Cleaning (Motor Drive Side)
If cleaning of fluid side is insufficient to prevent binding of pump, then
disassemble drive side following these steps below:
1. Remove 3 small screws from rear of pump housing.
2. Remove mounting ring and drive housing.
3. Clean all wetted surfaces and reassemble.
4. Reattach pump to motor housing.
Valve Cleaning
Refer to 781S Series spray valve maintenance and parts guide for valve
disassembly and reassembly procedures.
Part Numbers
Part # Description
7013915 781RC-SS System, 0.36 mm (0.014") diameter nozzle
7013769 781RC-SS System 0.71 mm (0.028") diameter nozzle
781RC MicroMark Recirculating Spray Marking System
14 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Item Part # Description
1 7028997 Kit, 781RC system pump
2 7013912 Brushless DC motor controller, 781RC system
3 7013909 Pump motor kit, 781RC system
4 7013910 Pump fitting kit, 781RC system
5 7014307 Pump enclosure assembly, complete
6 7028998 Kit, 781RC pump rebuild ceramic internals
7 7013911 External power supply kit, 781RC system
Not shown 7013565 1 liter tank, recirculating system
Not shown 7012744 781RC-SS spray valve, 0.014"
Not shown 7012745 781RC-SS spray valve, 0.028"
Not shown 7026680 787MS-SS-RC MicroSpray valve, recirculating
Replacement Parts
6
4
4
1
3
2
5
7
781RC MicroMark Recirculating Spray Marking System
15www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.